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MYSQL 1Z0-874 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Scaling MySQL | 10% | - Replication setup and management - High availability concepts - Read/write splitting |
| Topic 2: Optimizing Queries | 15% | - Slow query log analysis - Using EXPLAIN to analyze execution plans - Query rewriting and optimization - Index design and usage |
| Topic 3: Optimizing Schemas and Data Types | 15% | - Choosing appropriate data types - Table design and partitioning - Normalization and denormalization |
| Topic 4: Upgrade-Related Security Issues | 5% | - Post-upgrade security checks - Security changes between versions |
| Topic 5: Interpreting Error Messages and Logs | 5% | - Error codes and messages - General, binary, and error logs |
| Topic 6: User Management and Access Control | 20% | - Grant tables structure and maintenance - Granting and revoking privileges - Creating and managing user accounts |
| Topic 7: Optimizing the Server Configuration | 10% | - Storage engine tuning - Thread and connection management - Memory and buffer settings |
| Topic 8: Optimizing the Operating System Environment | 5% | - OS resource limits and tuning - File system and disk I/O |
| Topic 9: Securing the MySQL Server | 10% | - Security configuration options - Restricting file and system access - Network security and encryption |
| Topic 10: Stored Routines | 5% | - Security and execution context - Stored procedures and functions - Triggers and events |
MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part II Sample Questions:
Question #1
Why is --bind-address an important security option?
A. Mysqld will only accept connections from the given address.
B. Mysqld won't accept any connections at all.
C. On a server with multiple network interfaces, you can have mysqld accept connections only on the given interface.
D. Mysqld will turn off networking and will only accept local connections
Question #2
Consider the following EXPLAIN output. mysql> EXPLAIN SELECT Name FROM City WHERE Population > 8000000 *************************** 1. row *************************** id: 1 select_type: SIMPLE table: City type: ALL possible_keys: NULL key: NULL key_len: NULL ref: NULL rows: 4079 Extra: Using where
Which of the following statements are true? (Choose three)
A. The Name column should be indexed.
B. The query cannot be optimized any better.
C. All 4079 rows of the table need to examined.
D. The Population column should be indexed.
E. No index could be used to perform the query.
Question #3
Which of the following best describe how access control occurs in MySQL?
A. On login, the username, hostname and password are checked to allow access. On every query execution, username, hostname and current object access permissions are checked.
B. On login, the username, hostname and password are checked to allow access and the object access permissions at login time are used for all subsequent operations for the lifetime of the connection.
C. On login, the username, hostname and password are checked to allow access. On every query execution, username, hostname, password and current object access permissions are checked.
Question #4
Which of the following best describes the order in which MySQL considers host names and user names when a client attempts connection?
A. Usernames then hostnames
B. Both hostnames and usernames are checked concurrently.
C. Hostnames then usernames
Question #5
Suppose you have a server whose log files, data directory, and temporary files are distributed on different disks. How would this affect overall performance, compared to a server where all components reside on a single disk?
A. You would expect a performance gain because the disk related activities would be split more evenly.
B. Performance would drop because the server would have to do extra work to read information off of the different disks.
C. Performance would remain about the same, because the same amount of disk usage would be needed.
Solutions:
| Question #1 Correct Answer: C | Question #2 Correct Answer: C,D,E | Question #3 Correct Answer: A | Question #4 Correct Answer: C | Question #5 Correct Answer: A |
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